SHURFLO's 4128 fresh water pump design was created with a unique over-molded single-piece diaphragm, assuring long life and top performance in all plumbing systems. Designed as the next legendary pump, the 4128 pump is constructed for smooth flow. The 4128 fresh water automatic demand pump is quiet, thermally protected and can run dry without damage.

SHURFLO's 4128 fresh water pump design was created with a unique over-molded single-piece diaphragm, assuring long life and top performance in all plumbing systems. Designed as the next legendary pump, the 4128 pump is constructed for smooth flow. The 4128 fresh water automatic demand pump is quiet, thermally protected and can run dry without damage.

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Many of our manufacturers have a Minimum Advertised Price (M.A.P.) policy. This restricts us from advertising prices below a certain price which in many cases is higher than our everyday low price. In order to maintain our commitment to deliver our customers the lowest prices available, we must present our prices for products within M.A.P. pricing guidelines.